emeraldcityminerals:Green chromian diopside (CaMgSi2O6). From Keretti Mine, North Karelia, Finl
emeraldcityminerals:Green chromian diopside (CaMgSi2O6). From Keretti Mine, North Karelia, Finland. 8 cm x 5 cm x 3 cm. Available: www.emeraldcityminerals.com -- source link
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